The compression modulus of the nucleon and delta

Bhaduri, R. K.; Dey, Jishnu; Preston, M. A.

doi:10.1016/0370-2693(84)91163-8

Cited by 20 publications

(14 citation statements)

References 8 publications

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“…If we use the value of m(ν µ ) = 47.5meV/c 2 ⋆ from Eq. (35) we find that E ν (µ ± )/E ν (π ± ) = 0.9997, as in statement (b). We will show in the following why the energies in the frequencies of π ± and µ ± mesons are the same.…”

Section: The Mass Of the µ ± Mesonssupporting

confidence: 80%

“…In mechanics the value of the compression modulus is known. We follow the same route as B&L and use, as we have done before in [34], for κ the value which follows from the compression modulus of the nucleon K A = 900 to 1200 MeV, as determined theoretically by Bhaduri, Dey and Preston [35]. The value of K A found by them is supported by other theoretical and experimental studies of K N M of nuclei.…”

Section: The Weak and Strong Nuclear Forcementioning

confidence: 65%

“…The value of K A found by them is supported by other theoretical and experimental studies of K N M of nuclei. Setting K A = 1000 MeV and using the formula K A = 9/ρκ from [35], where ρ is the number density of nucleons per fm 3 , we arrive with r p = 0.88 fm at κ = 1.603 · 10 −35 cm 2 /dyn .…”

Section: The Weak and Strong Nuclear Forcementioning

confidence: 99%

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The standing wave model of the mesons and baryons

Koschmieder

2003

Chaos, Solitons & Fractals

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Only photons are needed to explain the masses of the pi(0), eta, Lambda, Sigma(0), Xi(0), Omega(-), Lambda(c,+), Sigma(c,0), Xi(c,0), and Omega(c,0) mesons and baryons. Only neutrinos are needed to explain the mass of the pi(+-) mesons. Neutrinos and photons are needed to explain the masses of the K-mesons, the neutron and D-mesons. Surprisingly the mass of the mu-meson can also be explained by the oscillation energies and rest masses of a neutrino lattice. From the difference of the masses of the pi(+-) mesons and mu(+-) mesons follows that the rest mass of the muon-neutrino is 47.5 milli-eV. From the difference of the masses of the neutron and proton follows that the rest mass of the electron-neutrino is 0.55 milli-eV. The potential of the weak force that holds the lattices of the particles together can be determined with Born's lattice theory. From the weak force follows automatically the existence of a strong force between the sides of two lattices. The strong nuclear force is the sum of the unsaturated weak forces at the sides of each lattice and is therefore 10^6 times stronger than the weak force.Comment: 41 pages, 6 figure

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Section: The Mass Of the µ ± Mesonssupporting

confidence: 80%

Section: The Weak and Strong Nuclear Forcementioning

confidence: 65%

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The standing wave model of the mesons and baryons

Koschmieder

2003

Chaos, Solitons & Fractals

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“…In nuclear physics incompressibility is defined as [14] K = 9 ∂ ∂n n 2 ∂ε ∂n , where ε = E/A is the energy per particle of the nuclear matter and n is the number density. The relation of K with bulk modulus B is…”

Section: Incompressibility : Its Implication For Witten's Cosmicmentioning

confidence: 99%

Incompressibility of strange matter

et al. 2004

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Strange stars calculated from a realistic equation of state (EOS), that incorporate chiral symmetry restoration as well as deconfinement at high density show compact objects in the mass radius curve. We compare our calculations of incompressibility for this EOS with that of nuclear matter. One of the nuclear matter EOS has a continuous transition to ud-matter at about five times normal density. Another nuclear matter EOS incorporates density dependent coupling constants. From a look at the consequent velocity of sound, it is found that the transition to ud-matter seems necessary.Comment: Accepted for publication in Phys Lett

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“…To take into account the effect of many·body interaction which a valence quark experiences in its encounter with a large number of its virtual quark and antiquark pairs, we assume that each valence quark moves in an average background field. With the above consideration we have derived an analytical form of the square of wavefunction of a hadron as 5 ) (1) where ro is the radius parameter of a nucleon. This 1¢(r)12 is free from interaction parameter and constituent quark mass and has been derived without reference to any dynamical equation of motion.…”

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confidence: 99%

On Some Properties of Nucleon in Nuclear Matter

Bhattacharya

Banerjee

1989

Progress of Theoretical Physics

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555The modification on the properties of a nucleon in a nuclear medium related to the EMC effe~t, critical density, incompressibility, Roper reasonance, etc., have been investigated with interesting conclusions in the context of the statistical model. .The incompressibility of a nucleon may play an important role as nuclear matter is compressed. Due to the finite size of nucleon, we come across a stituation when nucleons press against one another as nuclear matter is compressed considerably. As each individual nucleon undergoes squeezing, the knowledge of the incompressibility of a nucleon turns out. to be essential. Bhaduri et al.l) have suggested that in the ground state, the nucleon compressibility lies in the range 900-1200 Me V. Further an important interpretation widely accepted for the recently found EMC effect is supposed to be the increase in the size of a nucleon in a nuclear medium. J affe 2 ) has presented an excellent review on EMC effect and has discussed its many fascinating aspects. Mathieu et al. 3 ) have estimated an increase in the radius of a nucleon in nuclear matter in the context" of colour dielectric model and have found an enhance· ment in radius 15% in the neighbourhood of deconfinement region. In a subsequent analysis Mathieu et al. 4 ) have also investigated some properties of a nucleon in nuclear matter in the framework of a flux tube model of a hadron.In the present work we have investigated some properties of a nucleon in the statistical model considering nucleons constituting a nucleus to be embedded in a nuclear medium and some interesting results are obtained. In the statistical mode1 5 )-8) a nucleon is considered to consist of a cloud of virtual qdh, q2 ih, q~ ifa pairs in addition to the valence quarks ql, q2, q3 so that val~nce quarks only determine the quantum number of a colourless baryon. The real and virtual quarks of a particular flavour are regarded as identical and indistinguishable so that they form a statistical ensemble Of a weakly interacting Fermi gas. To take into account the effect of many·body interaction which a valence quark experiences in its encounter with a large number of its virtual quark and antiquark pairs, we assume that each valence quark moves in an average background field. With the above consideration we have derived an analytical form of the square of wavefunction of a hadron as 5 )(1)where ro is the radius parameter of a nucleon. This 1¢(r)12 is free from interaction parameter and constituent quark mass and has been derived without reference to any dynamical equation of motion.Considering a nucleon consisting of quark-diquark linked by flux tube, the

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The compression modulus of the nucleon and delta

Cited by 20 publications

References 8 publications

The standing wave model of the mesons and baryons

The standing wave model of the mesons and baryons

Incompressibility of strange matter

On Some Properties of Nucleon in Nuclear Matter

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